Home / 1,365,921.36-2,049,186.60-419,387.76

Finding the Fourth Proportional to 1,365,921.36, 2,049,186.60 and 419,387.76

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Solution

The fourth proportional to 1,365,921.36, 2,049,186.60 and 419,387.76 is: 629,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,921.36 : 2,049,186.60 = 419,387.76 : x
  2. Step 2: Convert to fraction form
    1,365,921.36/2,049,186.60 = 419,387.76/x
  3. Step 3: Cross multiply
    1,365,921.36x = 2,049,186.60 × 419,387.76
  4. Step 4: Simplify right side
    1,365,921.36x = 859,403,777,996.02
  5. Step 5: Solve for x
    x = 859,403,777,996.02/1,365,921.36
  6. Step 6: Final answer
    x = 629,175.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.